Nut-machine



(No Model.) 5 Sheets-Sheet 1. S. H. MARKHAM.

NUT MACHINE.

No. 320,571. Patented June 23, 1885.

N PETERS. Phnm-Lllhognpher. Walhingmn. D. C.

(No Model.) 5 Sheets-Sheet 2.

S. H. MARKHAM.

NUT MACHINE.

No. 320,571. Patented June 2-3, 1885.

Fig.3

0168 yi /bez,

(No Model.) 5 Sheets-Sheet; 3. S. H. MARKHAM.

NUT MACHINE.

No. 320,571. Patented June 23, 1885.

Fiyg4 g m/WM flttorney N. PEIERS, Phnko-Llihngnpher, Washin ton. D. C.

(No Model.) 5 Sheets-Sheet 4.

S. H. MARKHAM.

NUT MACHINE.

No. 320,571. Patented June 23, 1885.

WITNESSES A fforney and die.

5 Said lever operates 50 retracted by spring UNITED STATES SAMUEL 1 1. MARKHAM,

PATENT OFFICE.

OF CLEVELAND, OHIO.

NUT-MACHINE.

SPECIFICATION forming part of Letters Patent No. 320,571, dated June 23,1885. Application filed October 10, 1884. (No model.)

To (1 whom it may concern.-

Be it known that I, SAMUEL HENRY MARK- HAM, a citizen of the United States, residing at Cleveland, county of Guyahoga, and Stateof Ohio, haveinvented certain new and'useful Improvements in Nuthlachiues; and I do here by declare the following to be a description of the same, and of the manner of constructing and using the invention, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it appertains to construct and use the same, reference being bad to the accompanying drawings, forming a part of the specification, the principle of the invention being herein explained and the best mode in which I have contemplated applyingthat principle, so as to distinguish it from other inventions. 7

My invention relates to nutforging 1nachines, and is an improvement therein Said improvement is such that I thereby out two blanks simultaneously from the bar and forge said blanks simultaneously into nuts, both said results being effected by one and the same forward operation of the machine; also, by an immediate and direct continuance of said operation, the two said blanks are simultaneously discharged from the machine.

In the drawings, Figure l is a front perspec tive with the head-piece removed. Fig. 2 is a detail view of the head-piece, Fig. 3 is a rear elevation. Fig. 4 is a right-hand side elevation. Fig. 5isaleft-hand elevation. Fig. 6 is a plan view with certain top portions removed. Fig. 7 is a sectional detail view of the shears and of shear-block on line or w of Fig. 6. Fig. Sis a detail view of a piercer, crowner,

Fig. 9 is a detail vertical sectional View of head-piece, taken in a plane passing through one of the two duplicate sets of piercers and crowners.

A is the main drivingshaft, operated by power-wheel A. Shaft A is provided with cams B O O D D. Cam B operates lever B. lateral shaft B journaled in headpiece O Said shaft is provided with lugs 12, engaging in slots b, formed in crownerslides E, said crowner-slides,respectively,provided with orowners E and F. Said lever is B engaging with pin B which projects from the side of said lever.

Cams 0 and O operate the two rear hammerslides, c c, in connection with the two bearingarms M M, said arms being pivoted in shoes m, and designed to protect said hammerslidcs from the lifting tendency of said cams, said slides being armed with hammers 8 and slidiug in guideways c and retracted by spring 0*. Cam D operates lever P, which said lever operates upwardly shear-holder X, said holder being provided with shear f, said shear-holder being retracted by lever d, which swings on gear-shaft d, and is operated by spring B. The shear-block S holds the two upper shears, e e, which said shears are stationary. Cam D operates lever 0, said lever journaled on pivot bfl 'journaled in head-piece O, and coir necting at its forward extremity with the depending piercer-holders G and H, said holders provided with piercers 0 said holders rigid in a common slide, K. A yoke, K, fits over the front end of lever O, and has its dependent arms pivoted to said slide K. Slide K moves in slideways G. The rear end of lever O'is provided with the depending retractin g-arm L, which is operated by pin 7, laterally projecting from cam D. On shaft A are the rigid pinions R R", which engage with pinions S S, rigid, respectively, on the two end shafts,

T T. Shaft T is provided with the double cam \V WV operating hammer-slide z, and also with the single cam \V, operating hammerslide j. ShaftT' is provided with cam V, operating hammer-slide g, and also with the double cam- V Vioperating hammer'slide h. Each hammer-slide g and j is retracted by a spring, in, said spring working againsta pin, m, depending from the under face of the outer extremity, respectively, of each of said slides. Hammer slide h is provided at its rear extremity with a laterally-projecting pin, a. A link, a, has its extremities, respectively, pivoted to the free end of said pin and to lever-arm 2. Said lever-arm engages pin of, projecting laterally from cam V, and is pivoted at its lower end in shoe r, said lever-arm having bearing-arm p for the protection of hammerslideh. Hammer-slide i is retracted by mechanism that is the duplicate of the mechanism last recited. Hammer-slides g hj engage with bearing-arms n, to prevent the lifting action of the impinging cams V and WV, said arms being pivoted in shoes r, said hammer-slides g h ij sliding in guide-ways g h 1 j, said hammer-slides provided with hammers 8 y y are die-blocks upon which the blanks, when cut, are shoved to be pierced. Front hammerholders, s s, are stationary, and provided with hammers s.

t is the feeding-duct for the bars. At the outer end of each die-block y y, respectively, is the open orifice w, through which the forged nutfalls in discharge from the machine. Gage 8 stops the inserted bar at the dcsi red point for the cutting of the blanks.

is a block on which the inner blank rests preparatory to its being shoved by hammer of sliding hammer-holder 1' onto die-block y. The converging hammers of hammer-slides 9 dz 8 lie on a horizontal plane in11nediately below the horizontal plane of converging hammers of hammer-slides h 0 s, the said difference in said planes being demanded by the mechanism that cuts the two blanks by one operation of the combined shears, and that leaves them whence they can be shoved by the hammers of hammerslides h and 13 over upon the dies 3 and y.

y/- is the aperture in the die-blocks y and 3 Y upon which latter the nuts rest during the process of piercing and crowning, said die being perforated for the passage of the piercer.

The following is the operation of my machine in the process of forging two nuts simultan'eously: The bar being inserted by ductt and pushed inward between the shears and shear-block'N as far as gage 8, two blanks are simultaneously cut off by the upward movement of shear f, said shear being propelled by lever P, operated by cam D. Said blanks, by means ofsliding hammers ofhammer-slides h t, are then slid over respectively onto dieblocks y 1/ under the crowners E F, where they are struck by the converging hammers, and are also pierced by the piercers of holders G H, said hammer-slides h i being open ated by their respective cams, above specified, on end shafts, T T, and said piercers being operated by lever O by means of cam D on shaft A. The piercers are then lifted by retracting appliances described. Orowners E F are then brought down upon the pierced nuts by lever B, operated by cam B, which process gives a beveled top to the corners of the nuts. The crowners being then lifted by retracting appliances above described, the sliding hammers of slides h and i still further advance and push the nuts off the die-blocks into the orifices w, through which they are discharged from the machine.

The converging hannners and the shear f being then retracted by mechanism already described, the machine is ready for a repeating operation.

Other forms of embodying and using the principle of my invention may be employed in substitution for the specific form herein shown. It will therefore be understood that omissions, substitution, and changes may be ed to forge two nuts simultaneously and by one and the same operation of said machinery, substantially as setforth.

2. In a nut-machine, the combination, with actuating mechanism, of two sets of converging hammers, each said set consisting of four hammers, one said set lying in plane immediatcly under the plane in which the other said set lies, said combination adapted to forge two nuts simultaneously and by one and the same operation of the said mechanism, substantially as set forth.

3. In a nut-machine, the combination, with actuating mechanism, of two sets of converging hammers, said sets lying in different planes from each other and adapted to forge two separate nuts simultaneously, substantially as set forth.

4. In a nut-machine, the combinition, with actuating mechanism, of two sliding hammers actuated by said mechanism, said hammers pushing two forged nuts simultaneously into two orifices provided in said machine, substantially as set forth.

5. In a nut-machine, the combination, with shaft A, provided with cam D, of lever P, op erating shear-holder N, said holder retracted by lever d, which swings on shaft (1 and is operated by spring R, substantially as set forth.

6. In a nut-machine, the combination, with shaft A, interlocked by pinions with shafts T I T, said shafts being provided with cams V V and IV \V, of converging hammer-slides 9 hi? j, said slides armed with hammers 8 substantially as set forth.

7. In a nut-machine, the combination, with shaft A,provided with cam D, said cam operating lever 0, said lever jonrnaled in headpiece O of slide K, yoked to the front end of said lever and having rigid with it the two piercer-holders G H, substantially as set forth.

8. In a nut-machine, the combination, with shaft A, provided with cam B, of lever B, operating shaft B", said shaft journaled in headpiece O and operating the two depending slides E, with crowners E F attached, sub stantially as set forth.

9. In a nut-machine, the combination, with shaft A, interlocking by pinions with shafts T T, shaft T provided with cams W W, and shaft T, provided with camsV V, of the four lateral sliding hammer-holders, g h i j, said holders armed with hammers 8 substantially as set forth.

10. In a nut-machine, the combination, withshaft A, provided with cams O G, and bearingsliding hammer-holders being adapted to push arms M M, of sliding hammer-holders c c, forged nuts into orifices w, substantiallyas set armed with hammers 8 substantially as se forth. forth. In testimony that I claim the foregoing to 5 11. In a nut-machine, the combination, with be my invention I have hereunto set my hand 15 shaft A, interlocked by pinions with shafts T this 6th day of August, A. D. 1884.

T, shaft T being provided with the double- SAMUEL H. MARKHAM. cam WV W, and shaft T provided with double Vitnesses: cam V V", of sliding hammer-holders i h, MORTON V. COPE,

1o armed with hammers said hammers on said JOHN G. HALL. 

